[PATCH 3/8] pwm: mediatek: Rework parameters for clk helper function

[Uwe Kleine-König]

Convert pwm_mediatek_clk_enable() and pwm_mediatek_clk_disable() to take
lower level parameters. This enables these functions to be used in the next
commit when there is no valid pwm_chip and pwm_device yet.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig at baylibre.com>
---
 drivers/pwm/pwm-mediatek.c | 23 ++++++++++-------------
 1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/drivers/pwm/pwm-mediatek.c b/drivers/pwm/pwm-mediatek.c
index 4e2a27b02c80..8cc61a835cd5 100644
--- a/drivers/pwm/pwm-mediatek.c
+++ b/drivers/pwm/pwm-mediatek.c
@@ -65,10 +65,9 @@ to_pwm_mediatek_chip(struct pwm_chip *chip)
 	return pwmchip_get_drvdata(chip);
 }
 
-static int pwm_mediatek_clk_enable(struct pwm_chip *chip,
-				   struct pwm_device *pwm)
+static int pwm_mediatek_clk_enable(struct pwm_mediatek_chip *pc,
+				   unsigned int hwpwm)
 {
-	struct pwm_mediatek_chip *pc = to_pwm_mediatek_chip(chip);
 	int ret;
 
 	ret = clk_prepare_enable(pc->clk_top);
@@ -79,7 +78,7 @@ static int pwm_mediatek_clk_enable(struct pwm_chip *chip,
 	if (ret < 0)
 		goto disable_clk_top;
 
-	ret = clk_prepare_enable(pc->clk_pwms[pwm->hwpwm]);
+	ret = clk_prepare_enable(pc->clk_pwms[hwpwm]);
 	if (ret < 0)
 		goto disable_clk_main;
 
@@ -93,12 +92,10 @@ static int pwm_mediatek_clk_enable(struct pwm_chip *chip,
 	return ret;
 }
 
-static void pwm_mediatek_clk_disable(struct pwm_chip *chip,
-				     struct pwm_device *pwm)
+static void pwm_mediatek_clk_disable(struct pwm_mediatek_chip *pc,
+				     unsigned int hwpwm)
 {
-	struct pwm_mediatek_chip *pc = to_pwm_mediatek_chip(chip);
-
-	clk_disable_unprepare(pc->clk_pwms[pwm->hwpwm]);
+	clk_disable_unprepare(pc->clk_pwms[hwpwm]);
 	clk_disable_unprepare(pc->clk_main);
 	clk_disable_unprepare(pc->clk_top);
 }
@@ -121,7 +118,7 @@ static int pwm_mediatek_config(struct pwm_chip *chip, struct pwm_device *pwm,
 	u64 resolution;
 	int ret;
 
-	ret = pwm_mediatek_clk_enable(chip, pwm);
+	ret = pwm_mediatek_clk_enable(pc, pwm->hwpwm);
 	if (ret < 0)
 		return ret;
 
@@ -168,7 +165,7 @@ static int pwm_mediatek_config(struct pwm_chip *chip, struct pwm_device *pwm,
 	pwm_mediatek_writel(pc, pwm->hwpwm, reg_thres, cnt_duty);
 
 out:
-	pwm_mediatek_clk_disable(chip, pwm);
+	pwm_mediatek_clk_disable(pc, pwm->hwpwm);
 
 	return ret;
 }
@@ -179,7 +176,7 @@ static int pwm_mediatek_enable(struct pwm_chip *chip, struct pwm_device *pwm)
 	u32 value;
 	int ret;
 
-	ret = pwm_mediatek_clk_enable(chip, pwm);
+	ret = pwm_mediatek_clk_enable(pc, pwm->hwpwm);
 	if (ret < 0)
 		return ret;
 
@@ -199,7 +196,7 @@ static void pwm_mediatek_disable(struct pwm_chip *chip, struct pwm_device *pwm)
 	value &= ~BIT(pwm->hwpwm);
 	writel(value, pc->regs);
 
-	pwm_mediatek_clk_disable(chip, pwm);
+	pwm_mediatek_clk_disable(pc, pwm->hwpwm);
 }
 
 static int pwm_mediatek_apply(struct pwm_chip *chip, struct pwm_device *pwm,
-- 
2.49.0